Culinary apparatus.



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PATENTED JUNE 16, 1908. W. s. HADAWAY, JR. A

CULINARY APPARATUS.

APPLICATION FILED SEPT. 26. 1907.

WITNESSES: M.

INVENTOR Q/MMJ m ATTORNEY l l l UNITED STATES PATENT, OFFICE.

WILLIAM HADAWAY, JR, OF EAST ORANGE, NEW JERSEY, ASSIGNORTO HADAWAY ELEC- TRIC HEATING & ENGINEERING COMPANY, ACORPORATION OF NEW YORK.

CULINARY APPARATUS.

Specification of Letters Patent.

Patented June 1c, 1908.

Application filed. September 26, 1907. Serial No. 394,744.

'lo all whom it may concern:

Be it known that I, WILLIAM S. HADAWAY, Jr. a citizen of the United States, and a resident of East Orange, in the county of Essex and State of New Jersey, have invented a new and useful Improvement in Culinary Apparatus, of which the following is a speci' fication. A Hy invention relates to culinary apparatus 10. and similar devices and has special reference tol electrically heated fluid-containing vesse s.

The object of my invention is.to rovide means for rapidly and economically lieating water or other liquids for the purpose of applying a relatively high initial heat to an inner receptacle and forafterwards maintainin a moderate temperature fora considerab le length of time.

In the manufacture of bonbons and other candy it is desirable to immerse the vessel containing the sugar in water and heretofore a considerable length of time was necessarily occupied in bringing the entire volume of water to its boiling point.

According to my present invention, I provide a device to'which heat is applied electrically so as to obtain, in a relatively short time, a high heat for melting the sugar or other material contained in an inner receptacle, the molten material being maintained at a substantially constant temperature'for an indefinite period thereafter by a minimum expenditure of ener y.

Thesinglefigureo theaccom an ingdrawing is a sectional elevation o a eating or cooking device constructed :in accordance with y invention.

, Referring to the drawing, the device illustrated comprises an outer receptacle, or pot 1, having an inlet port 2 and an overflow pi e 3, asecond vessel 4, which is supported wit 1- in the vessel 1, and a third or mner vessel 5 which is suspended within the 'vessel 4. I

The intermediate vessel 4 is provided with a double peripheral wall 67 and a double bottom 89 preferably constructed of plates of copper or other suitable'con'ducting material. The construction of this member is such that a fluidv tight compartment is formed and is so disposed relative to the pot 1 that its outer walls are separated at all points from the inside walls of the pot.-

A short section of relatively large pipe 10 is screw-threaded into the bottom of the pot 1 and is held in-position by set nuts 11 and 12, the outer nut bein separated from the wall of the pot by a ru ber gasket 13. The

inner nut 11 forms a support for thevessel 4,

the bottom plate 9' of this'vessel Being se-- cured thereto by screws 14.

' The inner vessel 5 is provided with a flange 15 which projects laterally over a rim 16 of the pot 1 and serves to support the innermost vessel. A plurality of studs 17' (projects 5 downwardly from the flange 15 an under normal operating conditions, engage holes 18 in the rim 16. On account of the overflowpipe 3, 'it is desirable to mount the intermediate vessel a little to one side of thecenter 7o of'the pot 1 and, since it is specially desirable to maintain a concentric relation between the vessels 4 and 5, an eccentric guide ring 19 is'fitted into the opening of the pot, the inner hole in the ring being concentric with the intermediate vessel 4.

.Electric heating coils 20 and 21 are wound one over the other adjacent to the inner wall 6 within the fluid tight compartment of the I intermediate vessel 4. .The leads of the g coils 20 and 21 are connected to terminals 22, 23, and 24 which project through the bottom plate 9 and are disposed within the short length of pipe 10 so that the circuit connections of the two coils may be varied from 3,5 without. Small passages 25 are rovided through the bottom of the intermer iate vessel by sleeves 26 so that the level of the liquid in the pot 1 is the same both insideand outside of the vessel 4. I i

The operation ofthe device is as follows Sugar or other material to be melted is placed in the vessel 5 and the pot 1 is filled with water to a level slightly above the top of the intermediate vessel 4. In order to melt the sugar as soon'as possible the vessel- 5 is raised, and is supported by the studs 17 which are allowed to rest on the rim 16 of the pot, instead of engaging the holes 18, in order to lower the level of theliquid in the pot below the edge of the intermediate vessel 4. Electric energy is then supplied to the inner heating coil 20, which is preferably connected directly across the line at this time, and the heat thus generated will be transmitted directly through the conducting wall 6, since a film of air or other heat insulator isinter osed between the heating coil and the con ucting Wall 7. The volume of water contained in the intermediate vessel 4 is relatively small so that its temperature will soon be raised to the boiling point by reason of the fact that a free circulation with the main volume of water is prevented. As soon as the sugar is melted, the inner vessel 5 may be lowered into its normal position by' permitting the studs 17 to enterv theholes 18, thereby raising the level of the waterin the pot 1 above the edge of the intermediate vessel and thereby permitting a free circulation of the liquid. The heating coils 20 and -21 are then preferably connected in series across the supply circuits sothat less energy is supplied to them, and the sugar will be maintained in a molten condition without any danger of burning.

My improved device may, of course, be employed for various purposes, and modifications in the size and arrangement of de tails. may be effected'within the scope of my invention.

I claim as my invention:

1. In a heating device, the combination with a fluid-containing vessel, asecond vessel within said fluid-containing vessel, 0.

third vessel suspended in the second vessel, and'means for supporting the third vessel atdifferent heights, of means for heating the inside wall of the second vessel.

2. In a heating device, the combination with a fluid-containingvessel; a second vessel within said fluid-containing vessel having double walls to form'afiuid-tight compartment in the first vessel, a third vessel sus pended within the second vessel and means or supporting the third vessel at different heights to raise the liquid level inthe first vessel above and to permitit to sink-below the edge of the second vessel, of electric heating coils within the fluidtight compartment and adjacent to its inside wall.

ing an inlet port and an over-flow pipe, a sleeve fitted into the bottom of the receptacle, a second vessellocated within the. first vessel and secured to the inner end of the sleeve and a third vessel suspended within the second vessel to form a thin liquid film between its outer wall and the intermediate vessel, and means forsupporting the inner vessel at different heights, of electric heating coilsv located adjacent to the inner wall of the upon the position of the inner receptacle for either rmitting-or preventing a free circulation etw'een the liquid film and the body 'of the liquid in the outer receptacle.

subscribed my name this 12th day of September, 1907.

. WILLIAM S. HADAWAY, JR. Witnessesz v HAROLD B. TAYLOR,

' GRANT FREEMAN.

' 3. In a culinary device, the combination intermediate" vessel, f and, means dependent In testimony whereof, I ,.-have hereuntowith a fluid-containing pot or receptacle hav- I a Man? 

